diff options
Diffstat (limited to 'kernel/sys_ni.c')
| -rw-r--r-- | kernel/sys_ni.c | 389 |
1 files changed, 389 insertions, 0 deletions
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c new file mode 100644 index 000000000..11c55593a --- /dev/null +++ b/kernel/sys_ni.c @@ -0,0 +1,389 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <linux/linkage.h> +#include <linux/errno.h> + +#include <asm/unistd.h> + +#ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER +/* Architectures may override COND_SYSCALL and COND_SYSCALL_COMPAT */ +#include <asm/syscall_wrapper.h> +#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ + +/* we can't #include <linux/syscalls.h> here, + but tell gcc to not warn with -Wmissing-prototypes */ +asmlinkage long sys_ni_syscall(void); + +/* + * Non-implemented system calls get redirected here. + */ +asmlinkage long sys_ni_syscall(void) +{ + return -ENOSYS; +} + +#ifndef COND_SYSCALL +#define COND_SYSCALL(name) cond_syscall(sys_##name) +#endif /* COND_SYSCALL */ + +#ifndef COND_SYSCALL_COMPAT +#define COND_SYSCALL_COMPAT(name) cond_syscall(compat_sys_##name) +#endif /* COND_SYSCALL_COMPAT */ + +/* + * This list is kept in the same order as include/uapi/asm-generic/unistd.h. + * Architecture specific entries go below, followed by deprecated or obsolete + * system calls. + */ + +COND_SYSCALL(io_setup); +COND_SYSCALL_COMPAT(io_setup); +COND_SYSCALL(io_destroy); +COND_SYSCALL(io_submit); +COND_SYSCALL_COMPAT(io_submit); +COND_SYSCALL(io_cancel); +COND_SYSCALL(io_getevents_time32); +COND_SYSCALL(io_getevents); +COND_SYSCALL(io_pgetevents_time32); +COND_SYSCALL(io_pgetevents); +COND_SYSCALL_COMPAT(io_pgetevents_time32); +COND_SYSCALL_COMPAT(io_pgetevents); +COND_SYSCALL(io_uring_setup); +COND_SYSCALL(io_uring_enter); +COND_SYSCALL(io_uring_register); +COND_SYSCALL(lookup_dcookie); +COND_SYSCALL_COMPAT(lookup_dcookie); +COND_SYSCALL(eventfd2); +COND_SYSCALL(epoll_create1); +COND_SYSCALL(epoll_ctl); +COND_SYSCALL(epoll_pwait); +COND_SYSCALL_COMPAT(epoll_pwait); +COND_SYSCALL(epoll_pwait2); +COND_SYSCALL_COMPAT(epoll_pwait2); +COND_SYSCALL(inotify_init1); +COND_SYSCALL(inotify_add_watch); +COND_SYSCALL(inotify_rm_watch); +COND_SYSCALL(ioprio_set); +COND_SYSCALL(ioprio_get); +COND_SYSCALL(flock); +COND_SYSCALL(quotactl); +COND_SYSCALL(quotactl_fd); +COND_SYSCALL(signalfd4); +COND_SYSCALL_COMPAT(signalfd4); +COND_SYSCALL(timerfd_create); +COND_SYSCALL(timerfd_settime); +COND_SYSCALL(timerfd_settime32); +COND_SYSCALL(timerfd_gettime); +COND_SYSCALL(timerfd_gettime32); +COND_SYSCALL(acct); +COND_SYSCALL(capget); +COND_SYSCALL(capset); +/* __ARCH_WANT_SYS_CLONE3 */ +COND_SYSCALL(clone3); +COND_SYSCALL(futex); +COND_SYSCALL(futex_time32); +COND_SYSCALL(set_robust_list); +COND_SYSCALL_COMPAT(set_robust_list); +COND_SYSCALL(get_robust_list); +COND_SYSCALL_COMPAT(get_robust_list); +COND_SYSCALL(futex_waitv); +COND_SYSCALL(kexec_load); +COND_SYSCALL_COMPAT(kexec_load); +COND_SYSCALL(init_module); +COND_SYSCALL(delete_module); +COND_SYSCALL(syslog); +COND_SYSCALL(setregid); +COND_SYSCALL(setgid); +COND_SYSCALL(setreuid); +COND_SYSCALL(setuid); +COND_SYSCALL(setresuid); +COND_SYSCALL(getresuid); +COND_SYSCALL(setresgid); +COND_SYSCALL(getresgid); +COND_SYSCALL(setfsuid); +COND_SYSCALL(setfsgid); +COND_SYSCALL(setgroups); +COND_SYSCALL(getgroups); +COND_SYSCALL(mq_open); +COND_SYSCALL_COMPAT(mq_open); +COND_SYSCALL(mq_unlink); +COND_SYSCALL(mq_timedsend); +COND_SYSCALL(mq_timedsend_time32); +COND_SYSCALL(mq_timedreceive); +COND_SYSCALL(mq_timedreceive_time32); +COND_SYSCALL(mq_notify); +COND_SYSCALL_COMPAT(mq_notify); +COND_SYSCALL(mq_getsetattr); +COND_SYSCALL_COMPAT(mq_getsetattr); +COND_SYSCALL(msgget); +COND_SYSCALL(old_msgctl); +COND_SYSCALL(msgctl); +COND_SYSCALL_COMPAT(msgctl); +COND_SYSCALL_COMPAT(old_msgctl); +COND_SYSCALL(msgrcv); +COND_SYSCALL_COMPAT(msgrcv); +COND_SYSCALL(msgsnd); +COND_SYSCALL_COMPAT(msgsnd); +COND_SYSCALL(semget); +COND_SYSCALL(old_semctl); +COND_SYSCALL(semctl); +COND_SYSCALL_COMPAT(semctl); +COND_SYSCALL_COMPAT(old_semctl); +COND_SYSCALL(semtimedop); +COND_SYSCALL(semtimedop_time32); +COND_SYSCALL(semop); +COND_SYSCALL(shmget); +COND_SYSCALL(old_shmctl); +COND_SYSCALL(shmctl); +COND_SYSCALL_COMPAT(shmctl); +COND_SYSCALL_COMPAT(old_shmctl); +COND_SYSCALL(shmat); +COND_SYSCALL_COMPAT(shmat); +COND_SYSCALL(shmdt); +COND_SYSCALL(socket); +COND_SYSCALL(socketpair); +COND_SYSCALL(bind); +COND_SYSCALL(listen); +COND_SYSCALL(accept); +COND_SYSCALL(connect); +COND_SYSCALL(getsockname); +COND_SYSCALL(getpeername); +COND_SYSCALL(setsockopt); +COND_SYSCALL_COMPAT(setsockopt); +COND_SYSCALL(getsockopt); +COND_SYSCALL_COMPAT(getsockopt); +COND_SYSCALL(sendto); +COND_SYSCALL(shutdown); +COND_SYSCALL(recvfrom); +COND_SYSCALL_COMPAT(recvfrom); +COND_SYSCALL(sendmsg); +COND_SYSCALL_COMPAT(sendmsg); +COND_SYSCALL(recvmsg); +COND_SYSCALL_COMPAT(recvmsg); +COND_SYSCALL(mremap); +COND_SYSCALL(add_key); +COND_SYSCALL(request_key); +COND_SYSCALL(keyctl); +COND_SYSCALL_COMPAT(keyctl); +COND_SYSCALL(landlock_create_ruleset); +COND_SYSCALL(landlock_add_rule); +COND_SYSCALL(landlock_restrict_self); +COND_SYSCALL(fadvise64_64); +COND_SYSCALL_COMPAT(fadvise64_64); + +/* CONFIG_MMU only */ +COND_SYSCALL(swapon); +COND_SYSCALL(swapoff); +COND_SYSCALL(mprotect); +COND_SYSCALL(msync); +COND_SYSCALL(mlock); +COND_SYSCALL(munlock); +COND_SYSCALL(mlockall); +COND_SYSCALL(munlockall); +COND_SYSCALL(mincore); +COND_SYSCALL(madvise); +COND_SYSCALL(process_madvise); +COND_SYSCALL(process_mrelease); +COND_SYSCALL(remap_file_pages); +COND_SYSCALL(mbind); +COND_SYSCALL(get_mempolicy); +COND_SYSCALL(set_mempolicy); +COND_SYSCALL(migrate_pages); +COND_SYSCALL(move_pages); +COND_SYSCALL(set_mempolicy_home_node); +COND_SYSCALL(cachestat); + +COND_SYSCALL(perf_event_open); +COND_SYSCALL(accept4); +COND_SYSCALL(recvmmsg); +COND_SYSCALL(recvmmsg_time32); +COND_SYSCALL_COMPAT(recvmmsg_time32); +COND_SYSCALL_COMPAT(recvmmsg_time64); + +/* Posix timer syscalls may be configured out */ +COND_SYSCALL(timer_create); +COND_SYSCALL(timer_gettime); +COND_SYSCALL(timer_getoverrun); +COND_SYSCALL(timer_settime); +COND_SYSCALL(timer_delete); +COND_SYSCALL(clock_adjtime); +COND_SYSCALL(getitimer); +COND_SYSCALL(setitimer); +COND_SYSCALL(alarm); +COND_SYSCALL_COMPAT(timer_create); +COND_SYSCALL_COMPAT(getitimer); +COND_SYSCALL_COMPAT(setitimer); + +/* + * Architecture specific syscalls: see further below + */ + +/* fanotify */ +COND_SYSCALL(fanotify_init); +COND_SYSCALL(fanotify_mark); + +/* open by handle */ +COND_SYSCALL(name_to_handle_at); +COND_SYSCALL(open_by_handle_at); +COND_SYSCALL_COMPAT(open_by_handle_at); + +COND_SYSCALL(sendmmsg); +COND_SYSCALL_COMPAT(sendmmsg); +COND_SYSCALL(process_vm_readv); +COND_SYSCALL_COMPAT(process_vm_readv); +COND_SYSCALL(process_vm_writev); +COND_SYSCALL_COMPAT(process_vm_writev); + +/* compare kernel pointers */ +COND_SYSCALL(kcmp); + +COND_SYSCALL(finit_module); + +/* operate on Secure Computing state */ +COND_SYSCALL(seccomp); + +COND_SYSCALL(memfd_create); + +/* access BPF programs and maps */ +COND_SYSCALL(bpf); + +/* execveat */ +COND_SYSCALL(execveat); + +COND_SYSCALL(userfaultfd); + +/* membarrier */ +COND_SYSCALL(membarrier); + +COND_SYSCALL(mlock2); + +COND_SYSCALL(copy_file_range); + +/* memory protection keys */ +COND_SYSCALL(pkey_mprotect); +COND_SYSCALL(pkey_alloc); +COND_SYSCALL(pkey_free); + +/* memfd_secret */ +COND_SYSCALL(memfd_secret); + +/* + * Architecture specific weak syscall entries. + */ + +/* pciconfig: alpha, arm, arm64, ia64, sparc */ +COND_SYSCALL(pciconfig_read); +COND_SYSCALL(pciconfig_write); +COND_SYSCALL(pciconfig_iobase); + +/* sys_socketcall: arm, mips, x86, ... */ +COND_SYSCALL(socketcall); +COND_SYSCALL_COMPAT(socketcall); + +/* compat syscalls for arm64, x86, ... */ +COND_SYSCALL_COMPAT(fanotify_mark); + +/* x86 */ +COND_SYSCALL(vm86old); +COND_SYSCALL(modify_ldt); +COND_SYSCALL(vm86); +COND_SYSCALL(kexec_file_load); +COND_SYSCALL(map_shadow_stack); + +/* s390 */ +COND_SYSCALL(s390_pci_mmio_read); +COND_SYSCALL(s390_pci_mmio_write); +COND_SYSCALL(s390_ipc); +COND_SYSCALL_COMPAT(s390_ipc); + +/* powerpc */ +COND_SYSCALL(rtas); +COND_SYSCALL(spu_run); +COND_SYSCALL(spu_create); +COND_SYSCALL(subpage_prot); + + +/* + * Deprecated system calls which are still defined in + * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch + */ + +/* __ARCH_WANT_SYSCALL_NO_FLAGS */ +COND_SYSCALL(epoll_create); +COND_SYSCALL(inotify_init); +COND_SYSCALL(eventfd); +COND_SYSCALL(signalfd); +COND_SYSCALL_COMPAT(signalfd); + +/* __ARCH_WANT_SYSCALL_OFF_T */ +COND_SYSCALL(fadvise64); + +/* __ARCH_WANT_SYSCALL_DEPRECATED */ +COND_SYSCALL(epoll_wait); +COND_SYSCALL(recv); +COND_SYSCALL_COMPAT(recv); +COND_SYSCALL(send); +COND_SYSCALL(uselib); + +/* optional: time32 */ +COND_SYSCALL(time32); +COND_SYSCALL(stime32); +COND_SYSCALL(utime32); +COND_SYSCALL(adjtimex_time32); +COND_SYSCALL(sched_rr_get_interval_time32); +COND_SYSCALL(nanosleep_time32); +COND_SYSCALL(rt_sigtimedwait_time32); +COND_SYSCALL_COMPAT(rt_sigtimedwait_time32); +COND_SYSCALL(timer_settime32); +COND_SYSCALL(timer_gettime32); +COND_SYSCALL(clock_settime32); +COND_SYSCALL(clock_gettime32); +COND_SYSCALL(clock_getres_time32); +COND_SYSCALL(clock_nanosleep_time32); +COND_SYSCALL(utimes_time32); +COND_SYSCALL(futimesat_time32); +COND_SYSCALL(pselect6_time32); +COND_SYSCALL_COMPAT(pselect6_time32); +COND_SYSCALL(ppoll_time32); +COND_SYSCALL_COMPAT(ppoll_time32); +COND_SYSCALL(utimensat_time32); +COND_SYSCALL(clock_adjtime32); + +/* + * The syscalls below are not found in include/uapi/asm-generic/unistd.h + */ + +/* obsolete: SGETMASK_SYSCALL */ +COND_SYSCALL(sgetmask); +COND_SYSCALL(ssetmask); + +/* obsolete: SYSFS_SYSCALL */ +COND_SYSCALL(sysfs); + +/* obsolete: __ARCH_WANT_SYS_IPC */ +COND_SYSCALL(ipc); +COND_SYSCALL_COMPAT(ipc); + +/* obsolete: UID16 */ +COND_SYSCALL(chown16); +COND_SYSCALL(fchown16); +COND_SYSCALL(getegid16); +COND_SYSCALL(geteuid16); +COND_SYSCALL(getgid16); +COND_SYSCALL(getgroups16); +COND_SYSCALL(getresgid16); +COND_SYSCALL(getresuid16); +COND_SYSCALL(getuid16); +COND_SYSCALL(lchown16); +COND_SYSCALL(setfsgid16); +COND_SYSCALL(setfsuid16); +COND_SYSCALL(setgid16); +COND_SYSCALL(setgroups16); +COND_SYSCALL(setregid16); +COND_SYSCALL(setresgid16); +COND_SYSCALL(setresuid16); +COND_SYSCALL(setreuid16); +COND_SYSCALL(setuid16); + +/* restartable sequence */ +COND_SYSCALL(rseq); |